Abstract
UV irradiation of the long-lived radical [(CF3)2CF]2C·C2F5 (1) in a hexafluoropropylene trimer (HFPT) glassy matrix at 77 K and in a HFPT solution at 300 K leads to its decomposition to the ·CF3 radical and perfluoroolefin molecule. About 90% of the ·CF3 radicals formed recombine at 300 K. The remaining radicals add to the HFPT molecules generating the long-lived radicals [(CF3)2CF]3C·. Unlike the ·CF3 radicals produced by the photodecomposition of radicals 1, the ·CF3 radicals formed during radiolysis of HFPT are not stabilized in the glassy HFPT matrix at 77 K.
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Allayarov, S.R., Gordon, D.A., Chernysheva, T.E. et al. Formation and decay of trifluoromethyl radicals during photodecomposition of the long-lived perfluoro-2,4-dimethyl-3-ethylpent-3-yl radical. Russian Chemical Bulletin 50, 2381–2383 (2001). https://doi.org/10.1023/A:1015035613425
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DOI: https://doi.org/10.1023/A:1015035613425